Linux: inform the Zygote when it's waiting on a dead process

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 1b610a259edac5a9f2708f3ca05886726453ce95..72ec4959ad8227e426b5db1ac85dfacc7f618790 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -894,7 +894,7 @@ bool RenderProcessHostImpl::FastShutdownIfPossible() {
   if (!SuddenTerminationAllowed())
     return false;
 
-  ProcessDied();
+  ProcessDied(false /* already_dead */);
   fast_shutdown_started_ = true;
   return true;
 }
@@ -1075,7 +1075,7 @@ void RenderProcessHostImpl::OnChannelConnected(int32 peer_pid) {
 }
 
 void RenderProcessHostImpl::OnChannelError() {
-  ProcessDied();
+  ProcessDied(true /* already_dead */);
 }
 
 BrowserContext* RenderProcessHostImpl::GetBrowserContext() const {
@@ -1418,7 +1418,7 @@ void RenderProcessHostImpl::RegisterProcessHostForSite(
   map->RegisterProcess(site, process);
 }
 
-void RenderProcessHostImpl::ProcessDied() {
+void RenderProcessHostImpl::ProcessDied(bool already_dead) {
   // Our child process has died.  If we didn't expect it, it's a crash.
   // In any case, we need to let everyone know it's gone.
   // The OnChannelError notification can fire multiple times due to nested sync
@@ -1430,7 +1430,8 @@ void RenderProcessHostImpl::ProcessDied() {
   int exit_code = 0;
   base::TerminationStatus status =
       child_process_launcher_.get() ?
-      child_process_launcher_->GetChildTerminationStatus(&exit_code) :
+      child_process_launcher_->GetChildTerminationStatus(already_dead,
+                                                         &exit_code) :
       base::TERMINATION_STATUS_NORMAL_TERMINATION;
 
   RendererClosedDetails details(GetHandle(), status, exit_code);